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Navien NaviCirc User Manual
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41
1
2 3 4
ON
SW1
CE1
CE2
U1
C1
C2
C7
R6
PC1
12 V
5 V
SIGNAL
SIGNAL
1
GND
R5
R9
R8
C3
R1
R2
R7
D1
CON3
CON5
CON2
CON1
SIGNAL
2
SENSOR I
RA1
HotButton
Kit*
Ball
V
alve
Ball
V
alve
External
Pump
NPE-S2 W
ater
Heater
City Wat
er Supply
Expansion T
ank
DHW Supply
Wired P
ush Button*
1
2 3 4
ON
SW1
CE1
CE2
U1
C1
C2
C7
R6
PC1
12 V
5 V
SIGNAL
SIGNAL
1
GND
R5
R9
R8
C3
R1
R2
R7
D1
CON3
CON5
CON2
CON1
SIGNAL
2
SENSOR I
RA1
Return Wat
er
NaviCirc
T
emperature
Sensor*
Wired P
ush Button*
Wired Push Butt
on*
[NPE-150S2/180S2/210S2/240S2]
*
T
he HotButton kit, push buttons, and the temperatur
e sensor are not
included with the water heater but ar
e available for pur
chase.
40
42
Table of Contents
Table of Contents
3
About the Navicirc
5
Included Items
5
Specifications
6
Compatible Products & Pump Requirements
7
Configuration
8
Supply Connections
9
Installing the Navicirc
10
Installing the Navicirc
11
Leak Check & Air Purge
12
Securing the Navicirc to the Wall
13
Application System
14
NPE-A System
14
Application Guidelines
14
NPE-A System Diagram
18
NPE-A2/S2 System
22
Setting External Recirculation Mode
22
External Pump Wire Connection
26
Navien Hotbutton Kit (Optional)
32
System Application - External Recirculation
37
NPN System
42
External Pump Wire Connection
42
Adjusting the Recirculation Parameters
48
External Recirculation with Navicirc
50
External Recirculation with Hotbutton (Optional) and Navicirc
52
NCB-H System
54
Setting the DHW Operation
54
Setting External Recirculation
56
Examples of Electrical Connections
57
External Recirculation with Navicirc
62
External Recirculation with Hotbutton (Optional) and Navicirc
65
NFC-H System
69
Setting the DHW Operation
69
Setting External Recirculation
71
Examples of Electrical Connections
72
External Recirculation with Navicirc
80
External Recirculation with Hotbutton (Optional) and Navicirc
83
Troubleshooting
86
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Navien NaviCirc Specifications
General
Brand
Navien
Model
NaviCirc
Category
Control Unit
Language
English
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Navien NaviCirc Series
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